public class PP1_6
{
   public static void main(String[] args)
   {
      System.out.println("         *         ");     
      System.out.println("        ***        ");
      System.out.println("       *****       ");
      System.out.println("      *******      ");
      System.out.println("     *********     ");
      System.out.println("    ***********    ");
      System.out.println("   *************   ");
      System.out.println("  ***************  ");
      System.out.println(" ***************** ");
      System.out.println("*******************");
      System.out.println("       *****       ");
      System.out.println("       *****       ");
      System.out.println("       *****       ");
      System.out.println("       *****       ");
      System.out.println("       *****       ");
      System.out.println("       *****       ");
   }
}          
